Abstract
A data flow approach to the integration of numerical and non-numerical computations for real-time process control is presented. Process models and control algorithms are encapsulated in data flow functions communicating via streams conveying time-discrete data. Data flow functions possess temporal properties necessary to schedule computations in real time. Control applications are defined by the relational data model and are visualised as hierarchized directed graphs. The control system architecture comprises a library of function prototypes, a library of ready-to-run applications and real-time software distributed in a computer network. A prototype system written in Ada is being developed and applied to a model-based control of a pilot plant.
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